On page 12 of the rules it states that a "blast pattern that explodes outside a building can can affect the building", in a context that makes it seem like *grenades* are being discussed.

And in the description of grenades (p. 13) it says "All units *and structures* present in the blast pattern, even partially, are affected".

But grenades can't affect structures. Right?

The text states a blast template "can affect" buildings. However, the actual mechanics for damaging a building are dependant on the Destruction ability, and Grenades don't have any power in that regard.Only attacks with Destruction can damage buildings.

The Grenade token shows what power its attack has, just as a Tiger shows what power its main gun has. The latter has Destruction ability, the former does not.

Yes, it's really the second example (p. 13, on grenades explicitly) that's the issue: "All units and structures present in the blast pattern, even partially, are affected". I assume that gets fixed in the 2.0 rules (as it is in the iOS game).

That brings up a good point. "Structures" without the Structure symbol could well be a translator's slip. "Stuctures" could also mean things like a Defensive Position, if used in its most general sense.

Looking at the v2.0 preview, I can say that it is much clearer for many reasons. Things are addressed more clearly and the rules are well thought out, covering things like Defensive Positions, Trenches and Buildings.

Yes, it's really the second example (p. 13, on grenades explicitly) that's the issue: "All units and structures present in the blast pattern, even partially, are affected". I assume that gets fixed in the 2.0 rules (as it is in the iOS game).

FWIW, the mention of grenades affecting structures an explicit change in 1.2:

1.2 Rules Update wrote:

Grenade : modifying «All units present (even partially) on one of the 4 spaces under the blast pattern are affected by the attack.» by «All units and structures present in the blast pattern, even partially, are affected by the shot.»

So it seems like they meant it, but I don't see how: there's no symbology on the equipment token or blast template that would indicate any effect on structures.

Like I said, the 1.2b rules will cause you nothing but the denial you are suffering through. They are unnecearily confusing in places and require interpretation because sometimes they can't be taken literally. We have explained to you that grenades do not affect structures. Ditch these rules and use the unofficial manual.

Yes, it's really the second example (p. 13, on grenades explicitly) that's the issue: "All units and structures present in the blast pattern, even partially, are affected". I assume that gets fixed in the 2.0 rules (as it is in the iOS game).

FWIW, the mention of grenades affecting structures an explicit change in 1.2:

1.2 Rules Update wrote:

Grenade : modifying «All units present (even partially) on one of the 4 spaces under the blast pattern are affected by the attack.» by «All units and structures present in the blast pattern, even partially, are affected by the shot.»

So it seems like they meant it, but I don't see how: there's no symbology on the equipment token or blast template that would indicate any effect on structures.

Short AnswerGrenades can only attack Infantry or Light Vehicles. They have an X versus Heavy Vehicles. Anything that is not Infantry or a Light Vehicle is immune to a Grenade Attack.

The set of "Blast Templates" cover a much wider range of attacks, each of which have various values versus Infantry or Vehicles. Some also have a Destruction ability. That lets them ALSO damage things with the Structure Special Ability (as noted in the Destruction Special Ability). Note this is an expressly defined additional ability of those attacks.

Long AnswerYou are looking at this too narrowly and trying to read specific wording into something that was written by a French speaker and then translated into English, someone who was trying to alter rules but not drastically change the layout of the book. Someone who thinks of keywords like "Structure" in terms of the French versions and so did not necessarily see a conflict with using the term "structure".

As I have mentioned before, the use of "structure" here is not the keyword "Structure" (which would have the symbol associated with it), to be more clear it is being used for its more general definition. "construct or arrange according to a plan; give a pattern or organization to.", or to put it another way: a construct.

A giant iron colossus standing 18M tall is a "structure", and you grenade ain't going to do a thing to it. It is neither infantry or a vehicle.

Defensive Positions are "structures". They are definitely affected by grenades (or at least those inside are affected), offering only a defense bonus to those infantry inside caught in the blast. Note that while you can affect those inside, you cannot actually blow up a Defensive Position with a grenade either. It is neither Infantry, Light Vehicle, or Heavy Vehicle.

Buildings are "structures". The only way to damage them is by means of an attack that has the "Destruction" special ability. You can "affect" a building (I am sure you will damage the paint), but you cannot have a damaging EFFECT unless you have Destruction. Reduce a building to 0 Structure and it is destroyed. However, an Incendiary grenade can most definitely AFFECT a building by setting it on fire, because the rules for such a grenade specifically allow it to do so.

So as you can see, while the entire range of "structures" can be "affected by" (included in the attack from) a grenade, that does not mean EVERY structure is going to have the same EFFECT from the attack.

No, I'm simply pointing out that the rules as written (in English) are wrong, unless it is possible for a Grenade to affect a structure or "Structure" directly. No over interpretation is necessary.

I have already covered this, so I am done. You can choose to interpret things any way you want. You can try to understand them and enjoy the game or you can keep pointing at a word you choose to define narrowly and be confused. Whatever floats your boat. Do what you enjoy.